gerbermichi opened a new issue, #36459:
URL: https://github.com/apache/superset/issues/36459
### Bug description
I use the following code to set the correct locale:
```
def set_locale_from_url_param():
from flask import session, request
locale_param = request.args.get('lang')
if locale_param:
supported_locales = ['de', 'fr']
if locale_param in supported_locales:
session["locale"] = locale_param
FLASK_APP_MUTATOR = lambda app: app.before_request(set_locale_from_url_param)
````
That works fine, however, the call to `language_pack/<lang>/` is
unauthorized because the guest token is not set yet.
### Screenshots/recordings
_No response_
### Superset version
master / latest-dev
### Python version
3.9
### Node version
16
### Browser
Chrome
### Additional context
_No response_
### Checklist
- [ ] I have searched Superset docs and Slack and didn't find a solution to
my problem.
- [ ] I have searched the GitHub issue tracker and didn't find a similar bug
report.
- [ ] I have checked Superset's logs for errors and if I found a relevant
Python stacktrace, I included it here as text in the "additional context"
section.
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